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api-ms-win-crt-math-l1-1-0.dll - Analyze and How to Fix Errors

★★★★★ Verified File (27.08.2026)

Description


Creation date: 20.11.2015 06:52:51
File version: 10.0.10586.15
Antivirus scan: ✅ OK
Category: System
File size: 27.9 kb.
Architecture: 64-bit (x64)
✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.
How to determine your system architecture: Press keys Win+R , enter symbols wmic os get osarchitecture , press Enter.

Digital file signature api-ms-win-crt-math-l1-1-0.dll

Publisher: Microsoft Corporation
Issuer: Microsoft Code Signing PCA
Encryption algorithm: SHA1
Time stamp: Apr 5 06:03:53 2018 GMT

The api-ms-win-crt-math-l1-1-0.dll file is a Dynamic Link Library (DLL) that provides mathematical functions for the Windows operating system. It is part of the Core Runtime Library, which supports various arithmetic and floating-point operations.

MD5: 099ba086664d52d4c76136ab4a22e923
SHA-1: 0a7f439d53dc2ef691f6d4d2ccca144e0c88d446
SHA-256: ee43b19bb8516bb1e3b4957b196fd3a3ea75d505a420ad1f0424c45c40312bac

Where it is used

This file is utilized by several applications that require mathematical computations. While its specific programs are not publicly documented, common applications like Microsoft Office, Visual Studio, and various scientific software might use this DLL for their math-related tasks.

Errors related to api-ms-win-crt-math-l1-1-0.dll

  • "api-ms-win-crt-math-l1-1-0.dll not found"
  • "missing api-ms-win-crt-math-l1-1-0.dll"
  • "error loading api-ms-win-crt-math-l1-1-0.dll"

These errors can occur when the DLL is missing or corrupted, preventing applications from functioning properly.

File security

The file characteristics indicate that it is a trusted system file. There are no known viruses associated with this DLL; however, if you encounter suspicious behavior or receive warnings about the file, consult official Microsoft documentation or support.

api-ms-win-crt-math-l1-1-0.dll was not found
The code execution cannot proceed because api-ms-win-crt-math-l1-1-0.dll was not found
Failed to load api-ms-win-crt-math-l1-1-0.dll
The procedure entry point ... could not be located in api-ms-win-crt-math-l1-1-0.dll

1.
2a. 👉 Try to copy api-ms-win-crt-math-l1-1-0.dll C:\Program Files\Your program\
2b. Also try to copy to bin, lib folders.
2c. Try to copy api-ms-win-crt-math-l1-1-0.dll C:\Program Files (x86)\Your program\
👉 Make backups of the files before proceeding with replacement.
How do I switch to the current Windows directory?
- Press and hold the key "win" on the keyboard and press the key "r" , then write %windir% and press the key Enter.
How to switch to the directory Program Files (x86) ?
- Press Win+R then enter %ProgramFiles(x86)% and after press Enter.

How to fix errors

  1. Reinstall the program: If an application is missing this DLL, reinstall it from its official source. This ensures that all necessary files are correctly installed.
  2. Update Windows: Ensure your operating system and related components are up-to-date to avoid compatibility issues with newer software requirements.
  3. Manually replace api-ms-win-crt-math-l1-1-0.dll: Replace it in the System64 folder, ensuring to back up the original file first.

FAQ

Q: Can api-ms-win-crt-math-l1-1-0.dll be a virus?
No, it is a system file provided by Microsoft. However, always verify the source before downloading any files.
Q: Where can I download api-ms-win-crt-math-l1-1-0.dll?
Download from official Microsoft sources or reputable third-party sites that provide trusted system files.

Conclusion

The api-ms-win-crt-math-l1-1-0.dll is a crucial DLL for various applications requiring mathematical functions. Ensuring its integrity and proper installation can help resolve common issues on your Windows system.


File Description: api-ms-win-crt-math-l1-1-0.dll

The api-ms-win-crt-math-l1-1-0.dll file is a system component belonging to the Microsoft Visual C++ Redistributable for Visual Studio. Specifically, it is part of the Universal CRT (C Runtime) library, which provides math-related functions (like calculating square roots, trigonometry, and logarithms) required by software programs built using Microsoft Visual Studio.

Standard File Location

On a healthy Windows system, this file is located in the following standard directories:

  • 64-bit Windows (for 64-bit applications): C:\Windows\System32
  • 64-bit Windows (for 32-bit applications): C:\Windows\SysWOW64
  • 32-bit Windows: C:\Windows\System32

How to Fix the Error Without Downloading the DLL File

Downloading individual DLL files from third-party websites is unsafe and can introduce malware. Instead, you can fix the missing or corrupted file error using native Microsoft tools and official installers.

Method 1: Repair or Install Visual C++ Redistributable

Since this file belongs to Microsoft Visual C++, repairing the existing package will automatically restore the missing file.

  1. Press Windows Key + R, type appwiz.cpl, and press Enter to open Programs and Features.
  2. Scroll through the list to find Microsoft Visual C++ 2015-2022 Redistributable (or 2015, 2017, 2019 versions).
  3. Select the entry and click Change at the top of the window.
  4. Click the Repair button in the pop-up wizard.
  5. Restart your computer after the process finishes.

Method 2: Run SFC and DISM System Scans

Windows has built-in tools to detect and fix missing or corrupted system files like the Universal CRT DLLs.

  1. Click the Start menu, type cmd, right-click Command Prompt, and select Run as administrator.
  2. Type the following command and press Enter to repair the system image:
    DISM.exe /Online /Cleanup-image /Restorehealth
  3. After that command finishes, type this command and press Enter:
    sfc /scannow
  4. Wait for the verification to reach 100%, then restart your system.

Method 3: Run Windows Update

The Universal CRT library is distributed via Windows updates. Ensuring your OS is fully updated can deploy the missing file.

  1. Press Windows Key + I to open Settings.
  2. Navigate to Update & Security (or Windows Update on Windows 11).
  3. Click Check for updates.
  4. Download and install all pending updates, then restart your PC.
Other versions:
️ api-ms-win-crt-math-l1-1-0.dll 10.0.17134.12 32-bit (x86)
Microsoft Corporation